Great little run time hour meter.Pick-up coil (sensor) may also be located and placed on the side of a motor contactor near its coil. This works best for remote motor locations. I beleive the RPM readout is based on 60 hz so you may have to program the meter for one cycle and then check the results against the hours reading. 6 minutes should equal 0.1 Hrs.We'll see how long the battery lasts. I don't see any way of replacing it when it dies. Maybe never.

meter 6x594 what voltage does it run on and is it just a 2 wire hook up

How many hours will it count to

Field of Industry:: electronics tec

Product used for:: oil burner run time

Years purchasing from Grainger:: first time

Phil,The meter you referenced is a 4 digit (9999) and is resettable.The operating voltage is 115 volts AC.Here's the thing, This is a counter, not an hour meter. This meter is capable of up to 4 input pulses per second. It will not read hours.Hope this helped.You may find the technical information of a product listed below the item under Tech Spec.Good luck.Linkster